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关注：1
2013-05-23 12:21
求翻译：热能的一部分虽然又可变成机械能，但要使全部热能重新变成机械能是绝对不可能的。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
热能的一部分虽然又可变成机械能，但要使全部热能重新变成机械能是绝对不可能的。
问题补充： |
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2013-05-23 12:21:38
Although some heat can be turned into mechanical energy, but to make all the energy back into mechanical energy is absolutely impossible.
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2013-05-23 12:23:18
Although it may be a part of the heat energy into mechanical energy, but to make it all back into mechanical energy geothermal energy is absolutely impossible.
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2013-05-23 12:24:58
Although a heat energy part also variables becomes the mechanical energy, but must cause the complete heat energy to turn the mechanical energy is absolutely not impossible.
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2013-05-23 12:26:38
Part of the thermal energy into mechanical energy, but to make all the thermal energy into mechanical energy is again absolutely impossible.
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2013-05-23 12:28:18
Although a heat energy part also variables becomes the mechanical energy, but must cause the complete heat energy to turn the mechanical energy is absolutely not impossible.
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